Monday, March 28, 2022

Wolfgang Uhlmann...Underappreciated

 
     Younger readers are probably unfamiliar with the name Wolfgang Uhlmann (March 29, 1935 – August 24, 2020, age 85) who was East Germany's most successful player, reaching the 1971 Candidates Tournament and winner of the East German Championship 11 times. 
     Born in Dresden, his father, a baker, taught him the game at the age of six but, at age sixteen he contracted tuberculosis and spent 1 year and a half in a sanatorium where he seriously studied the game and emerged as a strong player. He won the German Youth Champion in 1951. He learned the trade of letterpress printing, but never practiced it, becoming a professional chess player instead.
     Uhlmann was acknowledged as one of the world's leading experts on the French Defense, which he used almost exclusively in answer to 1.e4, particularly the Winawer Variation. 
     In 1964, Uhlmann tied for first with Lev Polugaevsky in Sarajevo and with Vasily Smyslov in the Capablanca Memorial in Havana. He tied for first with Borislav Ivkov at Zagreb 1965, tied for first with Boris Spassky at Hastings 1965/66, tied for first with David Bronstein at Szombathely 1966 and tied for first with Bronstein at the Berlin Lasker Memorial in 1968. 
     At Raach in 1969, a zonal tournament, he finished two points ahead of the field and qualified for the Palma de Mallorca Interzonal in 1970. There he tied for 5th with Mark Taimanov and reached the Candidates Matches the following year. He lost his quarter-final match to Bent Larsen, 5.5-3.5.
     Chessmetrics retro-ratings give some idea of how good Uhlmann was in comparison to his contemporaries. He is assigned a high rating of 2686 on the site's December 1970 list and was ranked number 20 in the world. On the July 1971 list he is ranked number 17 in the world.
     He had been sick for much of his life from complications resulting from his childhood tuberculosis, but he died in Dresden, where he had lived his entire life, after entering a hospital following a fall. 
     In the following game his opponent, Dragoljub Velimirovic tried to set up a fork on black's K and Q on move 21, but missed Uhlmann's refutation. The game is a reminder that captures or recaptures are not mandatory in chess. 
 
 
 
A game that I liked (Fritz 17)
[Event "Skopje"] [Site "Skopje YUG"] [Date "1976.02.29"] [Round "?"] [White "Dragoljub Velimirovic"] [Black "Wolfgang Uhlmann"] [Result "0-1"] [ECO "C01"] [Annotator "Stockfish 14.1"] [PlyCount "42"] [EventDate "1976.??.??"] {French: Exchange Variation} 1. e4 e6 {Uhlmann was a life long expert on the French Defense and so Velimirovic, a dangerous tactician, transposes the game into the Exchange Variation, normally a toothless drawing variation in which the position becomes simple and clearcut and white makes no attempt at using his first move advantage. However, white can create winning chances by playing c2–c4 at some stage to put pressure on the Pawn on d5. Black can give white an isolated d-Pawn by capturing on c4, but this gives white's pieces greater freedom, which may lead to attacking chances.} 2. c4 d5 3. exd5 exd5 4. d4 Nf6 5. Nc3 Be7 {Uhlmann wrote: In no circumstances should lack exchange on c4 too early since after the gain of tempo Bxc4 the pressure from the attack against the f7-square would give white the advantage.} 6. Nf3 O-O 7. Be3 c6 (7... dxc4 {According to Uhlmann this move is too soon.} 8. Bxc4 Nbd7 9. h3 Nb6 10. Bb3 Nbd5 11. O-O c6 {Castaldo,F (2283)-Rogers,I (2529) Saint Vincent 2001 and white has a good position.}) (7... Nc6 {An unusual move that gives black equality, but nothing more.} 8. Be2 Be6 9. Ng5 Bf5 10. O-O h6 11. Nf3 Be6 12. b3 Re8 {is equal. Meijers,V (2496)-Rodriguez Gonzalez,J (2280) San Sebastian 2008}) 8. Bd3 {White has also tried 8.h3} dxc4 {Uhlmann: The exchange comes at the right moment. The light squared B has to move twice and black can close off the a2-g8 diagonal with the moves ...Nbd7-b6 followed by ...Nd5} 9. Bxc4 Nbd7 {[%cal Bb8d7,Bd7b6,Bb6d5][%mdl 32]} 10. O-O Nb6 11. Bb3 Nbd5 {Black has a solid position and now concentrates on completing his development.} 12. Ne5 Be6 13. Bg5 {Uhlmann was critical of this move, stating, "With this move white reveals that he has no real plan. The second move with this B is already a plus for black." However, he did not offer an alternative. Perhaps 13.Re1. White might also try to set up a B and Q battery on the b1-h7 diagonal.} Re8 14. Re1 Qa5 {According to Uhlmann, with this move black gets the initiative because he is the first to create threats and, in addition, the square d8 is vacated for the R. According to Stockfish the position is evaluated at 0.00 meaning both sides have chances.} 15. Qf3 Rad8 16. Rad1 (16. Bxf6 {According to Uhlmann this is unsatisfactory, but after} Bxf6 17. Ne4 Be7 18. Rad1 { there is absolutely nothing wrong with white's position.}) 16... Bb4 {"A surprising redeployment of the B. This move is based on a tactical joke, which white does not take seriously enough." Uhlmann. Either 16...h6 or 16...Nc7 result in equality.} 17. Nxd5 {Wrong capture.} (17. Bxd5 Bxd5 18. Qg3 {and white has good attacking chances after} Re6 19. f4) 17... Bxd5 18. Bxd5 Qxd5 19. Bxf6 {[%mdl 8192] Velimirovic played this under the impression that it was a refutation of black's plan, but in reality it's the losing move!} gxf6 { Velimirovic saw this, but he missed black's 20th move.} (19... Qxf3 {This is inferior to the text.} 20. Nxf3 Rxe1+ 21. Rxe1 gxf6 (21... Bxe1 22. Bxd8 { White is a piece up.}) 22. Rd1 {White has just a slightly better endgame.}) 20. Qxf6 {Forced.} (20. Qxd5 Rxd5 21. Ng4 Rxe1+ 22. Rxe1 Bxe1 23. Nxf6+ Kg7 24. Nxd5 cxd5 {and white has lost a piece.}) (20. Qg4+ {is met by} Kf8 {and white has two pieces under attack.}) 20... Rd6 (20... Bxe1 {would be wrong because after} 21. Qg5+ Kf8 22. Qh6+ Kg8 {white draws.} (22... Ke7 {loses to} 23. Rxe1) ) 21. Nd7 Bxe1 {Forcing immediate resignation.} (21... Rxf6 { [%mdl 8192] It's still not too late to lose!} 22. Rxe8+ Kg7 23. Rg8+ Kh6 24. Nxf6 {This position is evaluated as a clear win for white.} Qb5 25. Ng4+ Kh5 26. Ne3 f5 27. d5 cxd5 28. Nxf5 {[%emt 0:00:06] is mate in} Qe2 29. Ng3+ Kh6 30. Nxe2 Bf8 31. Rxd5 Bg7 32. Nf4 Be5 33. Rxe5 a6 34. Rh5#) (21... Bxe1 22. Rd3 Rxf6 23. Nxf6+ Kf8 24. Nxd5 cxd5 {Black is a piece up.}) 0-1

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